Those turned out cool! I had fun taking firework pictures for the first time this year. I found that using the settings of ISO 100, f11 for between 13 and 15 seconds worked pretty good. For me it was too shaky on bulb mode even with a tripod since I don't have a remote release or anything. You can check mine out here http://pairofsockies.blogspot.com/2011/07/celebrate-freedom.html